mirror of
https://github.com/usual2970/certimate.git
synced 2025-06-07 21:19:51 +00:00
386 lines
11 KiB
Go
386 lines
11 KiB
Go
package applicant
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import (
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"context"
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"crypto"
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"crypto/ecdsa"
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"crypto/elliptic"
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"crypto/rand"
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"errors"
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"fmt"
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"os"
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"strconv"
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"strings"
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"github.com/go-acme/lego/v4/certcrypto"
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"github.com/go-acme/lego/v4/certificate"
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"github.com/go-acme/lego/v4/challenge"
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"github.com/go-acme/lego/v4/challenge/dns01"
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"github.com/go-acme/lego/v4/lego"
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"github.com/go-acme/lego/v4/registration"
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"github.com/pocketbase/pocketbase/models"
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"github.com/usual2970/certimate/internal/app"
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"github.com/usual2970/certimate/internal/domain"
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"github.com/usual2970/certimate/internal/pkg/utils/x509"
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"github.com/usual2970/certimate/internal/repository"
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)
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const defaultSSLProvider = "letsencrypt"
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const (
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sslProviderLetsencrypt = "letsencrypt"
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sslProviderZeroSSL = "zerossl"
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sslProviderGts = "gts"
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)
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const (
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zerosslUrl = "https://acme.zerossl.com/v2/DV90"
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letsencryptUrl = "https://acme-v02.api.letsencrypt.org/directory"
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gtsUrl = "https://dv.acme-v02.api.pki.goog/directory"
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)
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var sslProviderUrls = map[string]string{
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sslProviderLetsencrypt: letsencryptUrl,
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sslProviderZeroSSL: zerosslUrl,
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sslProviderGts: gtsUrl,
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}
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const defaultEmail = "536464346@qq.com"
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type Certificate struct {
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CertUrl string `json:"certUrl"`
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CertStableUrl string `json:"certStableUrl"`
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PrivateKey string `json:"privateKey"`
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Certificate string `json:"certificate"`
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IssuerCertificate string `json:"issuerCertificate"`
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Csr string `json:"csr"`
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}
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type ApplyOption struct {
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Email string `json:"email"`
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SubjectAltNames string `json:"subjectAltNames"`
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AccessConfig string `json:"accessConfig"`
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KeyAlgorithm string `json:"keyAlgorithm"`
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Nameservers string `json:"nameservers"`
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PropagationTimeout int64 `json:"propagationTimeout"`
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DisableFollowCNAME bool `json:"disableFollowCNAME"`
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}
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type ApplyUser struct {
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Ca string
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Email string
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Registration *registration.Resource
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key string
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}
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func newApplyUser(ca, email string) (*ApplyUser, error) {
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repo := getAcmeAccountRepository()
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rs := &ApplyUser{
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Ca: ca,
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Email: email,
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}
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resp, err := repo.GetByCAAndEmail(ca, email)
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if err != nil {
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privateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
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if err != nil {
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return nil, err
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}
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keyStr, err := x509.ConvertECPrivateKeyToPEM(privateKey)
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if err != nil {
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return nil, err
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}
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rs.key = keyStr
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return rs, nil
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}
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rs.Registration = resp.Resource
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rs.key = resp.Key
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return rs, nil
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}
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func (u *ApplyUser) GetEmail() string {
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return u.Email
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}
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func (u ApplyUser) GetRegistration() *registration.Resource {
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return u.Registration
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}
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func (u *ApplyUser) GetPrivateKey() crypto.PrivateKey {
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rs, _ := x509.ParseECPrivateKeyFromPEM(u.key)
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return rs
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}
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func (u *ApplyUser) hasRegistration() bool {
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return u.Registration != nil
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}
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func (u *ApplyUser) getPrivateKeyString() string {
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return u.key
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}
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type Applicant interface {
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Apply() (*Certificate, error)
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}
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func Get(record *models.Record) (Applicant, error) {
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if record.GetString("applyConfig") == "" {
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return nil, errors.New("applyConfig is empty")
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}
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applyConfig := &domain.ApplyConfig{}
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record.UnmarshalJSONField("applyConfig", applyConfig)
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access, err := app.GetApp().Dao().FindRecordById("access", applyConfig.Access)
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if err != nil {
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return nil, fmt.Errorf("access record not found: %w", err)
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}
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if applyConfig.Email == "" {
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applyConfig.Email = defaultEmail
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}
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option := &ApplyOption{
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Email: applyConfig.Email,
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SubjectAltNames: record.GetString("domain"),
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AccessConfig: access.GetString("config"),
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KeyAlgorithm: applyConfig.KeyAlgorithm,
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Nameservers: applyConfig.Nameservers,
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PropagationTimeout: applyConfig.PropagationTimeout,
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DisableFollowCNAME: applyConfig.DisableFollowCNAME,
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}
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return GetWithTypeOption(domain.AccessProviderType(access.GetString("provider")), option)
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}
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func GetWithApplyNode(node *domain.WorkflowNode) (Applicant, error) {
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// 获取授权配置
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accessRepo := repository.NewAccessRepository()
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access, err := accessRepo.GetById(context.Background(), node.GetConfigString("access"))
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if err != nil {
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return nil, fmt.Errorf("access record not found: %w", err)
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}
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applyConfig := &ApplyOption{
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Email: node.GetConfigString("email"),
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SubjectAltNames: node.GetConfigString("domain"),
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AccessConfig: access.Config,
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KeyAlgorithm: node.GetConfigString("keyAlgorithm"),
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Nameservers: node.GetConfigString("nameservers"),
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PropagationTimeout: node.GetConfigInt64("propagationTimeout"),
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DisableFollowCNAME: node.GetConfigBool("disableFollowCNAME"),
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}
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return GetWithTypeOption(domain.AccessProviderType(access.Provider), applyConfig)
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}
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func GetWithTypeOption(provider domain.AccessProviderType, option *ApplyOption) (Applicant, error) {
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/*
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注意：如果追加新的常量值，请保持以 ASCII 排序。
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NOTICE: If you add new constant, please keep ASCII order.
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*/
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switch provider {
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case domain.ACCESS_PROVIDER_ACMEHTTPREQ:
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return NewACMEHttpReqApplicant(option), nil
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case domain.ACCESS_PROVIDER_ALIYUN:
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return NewAliyunApplicant(option), nil
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case domain.ACCESS_PROVIDER_AWS:
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return NewAWSApplicant(option), nil
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case domain.ACCESS_PROVIDER_CLOUDFLARE:
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return NewCloudflareApplicant(option), nil
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case domain.ACCESS_PROVIDER_GODADDY:
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return NewGoDaddyApplicant(option), nil
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case domain.ACCESS_PROVIDER_HUAWEICLOUD:
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return NewHuaweiCloudApplicant(option), nil
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case domain.ACCESS_PROVIDER_NAMEDOTCOM:
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return NewNameDotComApplicant(option), nil
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case domain.ACCESS_PROVIDER_NAMESILO:
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return NewNamesiloApplicant(option), nil
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case domain.ACCESS_PROVIDER_POWERDNS:
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return NewPowerDNSApplicant(option), nil
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case domain.ACCESS_PROVIDER_TENCENTCLOUD:
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return NewTencentCloudApplicant(option), nil
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case domain.ACCESS_PROVIDER_VOLCENGINE:
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return NewVolcEngineApplicant(option), nil
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default:
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return nil, fmt.Errorf("unsupported applicant provider type: %s", provider)
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}
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}
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type SSLProviderConfig struct {
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Config SSLProviderConfigContent `json:"config"`
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Provider string `json:"provider"`
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}
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type SSLProviderConfigContent struct {
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Zerossl SSLProviderEab `json:"zerossl"`
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Gts SSLProviderEab `json:"gts"`
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}
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type SSLProviderEab struct {
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EabHmacKey string `json:"eabHmacKey"`
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EabKid string `json:"eabKid"`
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}
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func apply(option *ApplyOption, provider challenge.Provider) (*Certificate, error) {
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record, _ := app.GetApp().Dao().FindFirstRecordByFilter("settings", "name='sslProvider'")
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sslProvider := &SSLProviderConfig{
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Config: SSLProviderConfigContent{},
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Provider: defaultSSLProvider,
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}
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if record != nil {
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if err := record.UnmarshalJSONField("content", sslProvider); err != nil {
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return nil, err
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}
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}
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// Some unified lego environment variables are configured here.
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// link: https://github.com/go-acme/lego/issues/1867
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os.Setenv("LEGO_DISABLE_CNAME_SUPPORT", strconv.FormatBool(option.DisableFollowCNAME))
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myUser, err := newApplyUser(sslProvider.Provider, option.Email)
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if err != nil {
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return nil, err
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}
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config := lego.NewConfig(myUser)
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// This CA URL is configured for a local dev instance of Boulder running in Docker in a VM.
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config.CADirURL = sslProviderUrls[sslProvider.Provider]
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config.Certificate.KeyType = parseKeyAlgorithm(option.KeyAlgorithm)
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// A client facilitates communication with the CA server.
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client, err := lego.NewClient(config)
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if err != nil {
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return nil, err
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}
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challengeOptions := make([]dns01.ChallengeOption, 0)
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nameservers := parseNameservers(option.Nameservers)
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if len(nameservers) > 0 {
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challengeOptions = append(challengeOptions, dns01.AddRecursiveNameservers(nameservers))
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}
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client.Challenge.SetDNS01Provider(provider, challengeOptions...)
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// New users will need to register
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if !myUser.hasRegistration() {
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reg, err := getReg(client, sslProvider, myUser)
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if err != nil {
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return nil, fmt.Errorf("failed to register: %w", err)
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}
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myUser.Registration = reg
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}
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domains := strings.Split(option.SubjectAltNames, ";")
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request := certificate.ObtainRequest{
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Domains: domains,
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Bundle: true,
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}
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certificates, err := client.Certificate.Obtain(request)
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if err != nil {
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return nil, err
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}
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return &Certificate{
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CertUrl: certificates.CertURL,
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CertStableUrl: certificates.CertStableURL,
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PrivateKey: string(certificates.PrivateKey),
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Certificate: string(certificates.Certificate),
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IssuerCertificate: string(certificates.IssuerCertificate),
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Csr: string(certificates.CSR),
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}, nil
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}
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type AcmeAccountRepository interface {
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GetByCAAndEmail(ca, email string) (*domain.AcmeAccount, error)
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Save(ca, email, key string, resource *registration.Resource) error
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}
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func getAcmeAccountRepository() AcmeAccountRepository {
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return repository.NewAcmeAccountRepository()
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}
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func getReg(client *lego.Client, sslProvider *SSLProviderConfig, user *ApplyUser) (*registration.Resource, error) {
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var reg *registration.Resource
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var err error
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switch sslProvider.Provider {
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case sslProviderZeroSSL:
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reg, err = client.Registration.RegisterWithExternalAccountBinding(registration.RegisterEABOptions{
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TermsOfServiceAgreed: true,
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Kid: sslProvider.Config.Zerossl.EabKid,
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HmacEncoded: sslProvider.Config.Zerossl.EabHmacKey,
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})
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case sslProviderGts:
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reg, err = client.Registration.RegisterWithExternalAccountBinding(registration.RegisterEABOptions{
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TermsOfServiceAgreed: true,
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Kid: sslProvider.Config.Gts.EabKid,
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HmacEncoded: sslProvider.Config.Gts.EabHmacKey,
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})
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case sslProviderLetsencrypt:
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reg, err = client.Registration.Register(registration.RegisterOptions{TermsOfServiceAgreed: true})
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default:
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err = errors.New("unknown ssl provider")
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}
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if err != nil {
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return nil, err
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}
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repo := getAcmeAccountRepository()
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resp, err := repo.GetByCAAndEmail(sslProvider.Provider, user.GetEmail())
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if err == nil {
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user.key = resp.Key
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return resp.Resource, nil
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}
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if err := repo.Save(sslProvider.Provider, user.GetEmail(), user.getPrivateKeyString(), reg); err != nil {
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return nil, fmt.Errorf("failed to save registration: %w", err)
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}
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return reg, nil
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}
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func parseNameservers(ns string) []string {
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nameservers := make([]string, 0)
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lines := strings.Split(ns, ";")
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for _, line := range lines {
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line = strings.TrimSpace(line)
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if line == "" {
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continue
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}
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nameservers = append(nameservers, line)
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}
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return nameservers
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}
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func parseKeyAlgorithm(algo string) certcrypto.KeyType {
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switch algo {
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case "RSA2048":
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return certcrypto.RSA2048
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case "RSA3072":
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return certcrypto.RSA3072
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case "RSA4096":
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return certcrypto.RSA4096
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case "RSA8192":
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return certcrypto.RSA8192
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case "EC256":
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return certcrypto.EC256
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case "EC384":
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return certcrypto.EC384
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default:
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return certcrypto.RSA2048
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}
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}
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